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From: jeenglis@nunki.usc.edu (Joe English)
Newsgroups: comp.lang.modula2
Subject: Re: "for" loops (was Re: C++ vs. Modula2)
Message-ID: <2510@nunki.usc.edu>
Date: 29 Jan 89 23:43:09 GMT
References: <19579@agate.BERKELEY.EDU> <8515@lanl.gov> <6419@polya.Stanford.EDU>
Reply-To: jeenglis@nunki.usc.edu (Joe English)
Distribution: na
Organization: University of Southern California, Los Angeles, CA
Lines: 35


crew@Polya.Stanford.EDU (Roger Crew) writes:
>How would you write the following in C?
>
>	VAR a, b, c : Char;
>	...
>	FOR c = a TO b DO ... END;
>
>You can even assume that the body of the loop affects neither a nor b.
>Hint:  the answer is *not*
>
>	char a, b, c;
>	...
>	for (c = a; c <= b; ++c) { ... }
>
>(just try a = 0 and b = 255 in the case of 8 bit chars).


Howzabout

         int a, b, c;
         ...
         for (c = a; c <= b; ++c) { ..., but use "(char)c" instead of "c" }

?

Or
         char a,b,c;
         ...
         for (c = a; ; ++c) { ... if (c == b) break; }


--Joe English

  jeenglis@nunki.usc.edu